Release of new version 2.0.1

Author: jfcherng

CHANGELOG.md

@@ -2,6 +2,11 @@
 ## VERSION 2  AFTERNOON
 
  * Version **2.0** - afternoon
+   * 2019-02-21 04:56  **2.0.1**  remove dead codes
+      * 09186cb Make SequenceMatcher::linesAreDifferent() private
+      * 4a7ca55 Remove unused codes
+      * 58f2016 nits
+      * fe0974d Fix a typo
    * 2019-02-20 14:45  **2.0.0**  initial release
       * 9336cf3 [BC break] Make constants name shorter
       * 3c86b71 Add ability to generate int opcodes
@@ -14,4 +19,4 @@
 ## VERSION 1  INIT RELEASE
 
  * Version **1.0** - init release
-   * 2019-02-08 09:39  **1.0.0**  initial release
+   * 2019-02-08 09:39  **1.0.0**  initial release